Boiler-flue cleaner



(No Madel.) 2 Sheets-Sheet 1.

G. S. SMITH. BOILER PLUE CLEANER.

No. 441,858. Patented Dec. 2, 1890.

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( Modem 2 Sheets-Sheet 2.

G. s. SMITH. BOILER FLUE CLEANER.

No. 441,858. Patented Dec. 2, 1890.

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UNITED STATES PATENT OFFICE.

TO GEORGE C. JACKSON, OF DUSIIORE, PENNSYLVANIA.

BOlLER-FLUE CLEANER.

SPECIFICATION forming part of Letters Patent No. 441,858, dated December 2, 1890. Application filed June 24,1890. Serial No. 356,557- (No model.)

To all whom it may concern:

Beit known that I, GABRIEL SAYR SMITH, a citizen of the United States, residing at T- wanda, in the county of Bradford and State of Pennsylvania, have invented certain new and usefulImprovements in Boiler-Flue Cleaners and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to i c which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in flue-cleaners for steam-boilers, its object being to provide an implement of this character for cleaning the fines in upright boilers without the necessity of extinguishing the fire.

A further object is to provide a cleaner which may be inserted into the fines from the bottom, thereby rendering it unnecessary to remove the bonnet from the boiler.

The invention will first be described in connection with the accompanying drawings, and then pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspectiveview of a flue-cleaner constructed 0 in accordance with my invention, showing the manner of operating the same. Fig. 2 is a side elevation with parts broken away, and Fig. 8 is a like View showing amodified form. Referring to the details of the drawings,

3 5 the vertical or cleaner rod A is provided on its upper end With a sleeve a, into which is screwed or otherwise secured any form of scraper B. The rod A may be formed of a section of pipe or a round or square bar, as

desired, and of sufficient length to enable the scraper B to be pushed entirely through the flue to be cleaned. A T or collar C, adapted to slide upon rod A, is provided with a screwihreaded opening 0, into which screws one end of the operating-rod D, having a handle (I on its free end. It will be seen by reference to Fig. 1 that aslight turn of the operating-rod D by means of the handle d will loosen the T 0 upon rod A, so as to enable it to be moved to any desired position upon the rod,

when a slight reverse turn of the operatingrod will cause the end of the same to impinge upon the rod A, so as to securely fasten the T in the position desired and thus lengthen or shorten the distance between the T and scraper B, to adjust its length to suit the conditions or exigencies of the case.

In Fig. 3 is shown a modification of the manner of securing the T to the cleaner-rod. A tube E, of the length desired for the operat- 6o ing-rod, is secured to the T G, and registers with the opening 0, its free end being closed by a cap e, screwed thereon and of any desired form. This tube is provided on its under side and near its outer end with a slot f, the purpose of which will hereinafter appear. he operating-rod D, in this form, is smooth on the end entering the opening in the T, and

is provided on its other end with a washer g,

against which bears one end of a coil-spring 7L, interposed between the washer and the cap e of the tube E. It will be seen by this construction that the spring h will cause the operating-rod D to impinge upon the scraperrod A, and thus hold the T in any desired 7 5 position thereon. The spring 7L may be strong enough to insure the proper contact between the rod A and the end of the operating-rod D; but under such construction it is preferred to form the scraper-rod with perforations t at intervals throughout its length to receive the end of the operating-rod D. A short rod or triggerj, secured to the operating-rod, projects downward through the slot f in the tube E, for the purpose of drawing back the operat- 8 5 in g-rod against the pressure of spring h and away from engagement with the scraper-rod, thus loosening the T thereon and permitting the adjustment of parts previously described.

The operation of my invention is plainly 9o seen by an inspection of Fig. 1. The implement is placed within the furnace, the operating-rod passing out through the door. The scraper is now inserted within the bottom of the flue, the T being on the scraper-rod near the scraper. By an upward movement by the operator upon the operating-rod the scraper is forced into the flue as far as the posit-ion of the T will permit, when the latter is loosened,

as described, and lowered a short- Ioo distance; then tightened and raised again, as 111 the first instance. This operation is repeated until the scraper has been forced en 1. A boiler-flue cleaner comprising a slide or sleeve, a rod to carry a scrapei or cleaner, said rod and sleeve being adj ustable one upon the other, and means for securing said parts in their relative adjustment without removal of the cleaner from a flue, substantially as and for the purposes set forth.

A boiler-flue cleaner comprising a slide or sleeve, a rod to carry a cleaner or scraper, said rod and sleeve being adj ustable-one upon the other, and a longitudinally-movable rod passing through said sleeve at an angle to and engaging said cleaner-rod, whereby the length of said cleaner-rod between its cleaner and said sleeve may be varied at will by movement of the rod engaging therewith, and locked in position by said rod, substantially as and for the purposes set forth.

In testimony whereof I affix mysignature in presence of two witnesses;

GABRIEL SAYR SMITH.

Witnesses:

W. H. DODGE, J. II. PENNEPACKER. 

